无线传感器网络的时间同步算法分析

Time Synchronization Algorithm for Wireless Sensor Networks Analysis

当前移动通信领域对于无线传感器网络的研究正在逐渐加深,时间同步技术是WSN应用中的支撑技术,是无线网络传感器网络研究中的重中之重。然而传统的同步方法NTP和GPS因为尺寸、代价、能量问题、复杂度等因素并不适用于传感器网络,而且传感器网络自身的体积与能量受限等特点给时间同步计算也增加了一定的难度,为了使无线传感器网络的应用潜力得到最大限度的发挥,对时间同步技术的研究就显得尤为必要。文章从无线传感器网络时间同步和相关问题入手,重点介绍了影响时间同步的关键因素、无线传感网络节点时间校正的几项基本技术以及具体的计算方法。

The current research for wireless sensor network mobile communications sector is gradually deepened, time synchronization technology is WSN applications support technology, a wireless network sensor network research priority.However, the traditional method of synchronization NTP and GPS because the size, price, energy issues, the complexity of other factors are not suitable for sensor networks, sensor networks and their limited size and energy characteristics to calculate the time synchronization also adds a certain degree of difficulty, in order to make potential applications of wireless sensor networks to be maximized, the study of time synchronization technology is particularly necessary. Articles sync and related issues starting from the wireless sensor network time, focusing on the key factors affecting time synchronization, wireless sensor network nodes time correction of several basic techniques and speciifc method of calculation.